To Match or Not to Match in Epidemiological Studies—Same Outcome but Less Power

This study aimed to analyze the possible resemblance or difference in outcome in a case-control study of quality of life for IBS patients compared to controls free from the disease, when a matching procedure for age and sex was applied for the control group compared to when all participating subjects were included in the control group. The main result was that almost the same and identical results were found irrespective of whether matching or not matching was applied in this epidemiological case-control study. The matching procedure however, slightly diminished the statistical power of the results.

• Publication year

  2010

• Venue

  International Journal of Environmental Research and Public Health

• Publication date

  2010-01-01

• Fields of study

  Medicine, Environmental Science

• Identifiers
  DOI 10.3390/ijerph7010325PMID 20195449PMCID 2819792
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

• I. INTRODUCTION

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